Fan-motor mounting



Aug. 31, 1926. 1,597,871

B. REYNDERS FAN MOTOR MOUNTING Filed August 14, 1924 WITNESSES: INVENTORI flrzfiunBReyrzders.

BY W ATTORNEY Patented Aug. 31, 1926. a I

anrnun n. nnrnnnns, or srnmermrn MASSACHUSETTS, ASSIGNOR TO WESTING-HOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION, OF PENNSYLFANJIOTOB MOUNTING.

Applloation filed August 14, 1924. Serial at. 731,943.

My invention relates generally to. improvements in fans and moreparticularly o fan-motor mountings. The object of the invention,generally stated, is the rovision of a fan-motor mounting that shall be.simple and eificient in operation and readily manufactured.

' A more specific object of the invention is the 1provision of afan-motor mounting whic will ermit the setting of the fan motor indiiibrent positions on the base to adapt the fan for attachment tovertical, horizontal and oblique supports. It is also an object of theinvention to provide a fan-motor mounting, parts of which may be forcedto conform in shape to other parts-to give a proper fitting of all theparts.

Other objects of the invention will, in

and economically part, be-obvious and, in part, appear here-- inafter.

The invention, accordingly, is disclosed in the embodiment thereofshown'in the accompanying drawing and comprises the features ofconstruction, combination of elements and arrangement of parts whichwill be exemplified in the construction hereinafter set forth, and thescope of the application of which will be indicated in the [claims For afuller understanding of the objects of the-invention, reference may behad to the following detailed description, taken in connection with theaccompanying drawing in which:

Figure 1 is a perspective view of a fan showing an embodiment-of thefan-motor mounting in accordance with this invention;

Fi 2 isa side elevation of the fan showing t e fan-motor mounting, partsbeing broken away to showits construction;

Fig. 3 is an end view of a band forming a art of the motor mounting; and

ig. 4 is a side elevational view with parts I broken away to show themountingapplied to 'a fan motor casin Regerring now to the drawing, 10desig- .nates a fan motor provided with a shaft 11 that extends beyondthe casing, presentin an end for the reception of the fan whee or blades12. As shown in Fig. 2, the fan provided with a sectional blades arefixed on the extended end of the ably less than 90.

shaft 11 by a set screw 24 and are enclosed by'a fan guard 13, carriedby the motor casmg. In mounting the fan guard 13, a plurality ofradially extending 'arms 14 are attached to the motor casin and haveslots formed in their outer ends to receive the base member of the fanguard.

In order that the motor may be mounted on supports extending indifferent planes, a basediaj having a vertical shank 25, is pro-, videAs will be observed, a flange 16 is formed on the base and has aplurality. of openings drilled therein so that. the base may be attachedto such supports as a vertical wall or'a ceiling.

Since the base 15 may be mounted on a wall or suspended from a ceiling,the motor is attached thereto in such a manner that it may be set indifferent positions relative to the base so as to deliver a current ofair 7 in the desired direction. Accordingly, an open band 18, having itsendsturned outwardly, forming dependin lugs'19, is provided. As will beobserve the lugs 19 extend substantially parallel to one another and arespaced apart to permit'the projection of the up er end of shank 25between them. Forms .on opposite sides of the shank are faces 20, greatenough in area to receive the lugs 19.

In order to secure the lugs in position on the shank, openings, whichmay be set in register with one another, are drilled in these members,and a bolt is projected through them. Mounted on the bolt 21 is a wingnut 26 which may be adjusted to clamp together the lugs and shank toestablish frictional engagement and to fix them in any predeterminedrelative positions.

As shown in Fig. 2, the faces 20 are de-- fined on two sides byshoulders 22, which serve to restrict the rotation of the band 18 aboutthe bolt 21. The drawing shows that these shoulders permit the backwardmovement of the motor through an angle of sub stantially from thevertical, while the forward movement permitted is consider- By thusproviding for adjustment of the motor on the base, the fan is adaptedfor mounting on a desk, a wall, or a ceiling.

With a view to holding the motor against rotation during operation, itis necessary to ing provide for the engagement of the motor casby theband 18. In order to provide for such engagement, an annular bed 17 isformed on the casing for the reception of the band 18. Accordingly, whenthe band is placed in position, it engages frictionally the bed, and themotor is held against rotation. It will be readily understood that thefrictional grip of the band may be varied to meet conditions by alteringthe gripping area, the coefiicient of friction of the contactingsurfaces or the pressure forcing the surfaces into engagement. Since theband is attached to the base'by means of a bolt and a wing nut whichserve to draw together the lugs, the gripping pressure of the band iseffected by the adjustment of the nut.

It is preferable to make the band from a resilient metal plate and, whensuch a resilient band is used, it permits the drawing of the band to theexact shape of the annular bed, so that possible inaccuracies inconstruction do not affect the frictional engagement. Further, the band,or account of its resilience, may be continually urged toward the bed byspring pressure when the wing nut is operated to force the lugs 19together.

Since there is a possibility of the band moving axially on the motorcasing, due to the forces exerted during the operation of the motor, aplurality of projections or lugs 23 are formed integrally with thecasing and disposed in circumferential rows along each side of the bed17.

In mounting a motor of this type, when it is required to adapt it forsuspension fromv a ceiling, the wing nut 21 is released and the bandrotated about the bolt to the position shown in Fig. 1, when the wingnut is tightened, establishing the frictional grip of the band on themotor casing, and of the lugs 19 on the base 15. When the fan motor isset as shown in Fig. 1, and mounted on a ceiling, the fan blades arepositioned to deliver a current of air downward. The setting of themotor as described above also adapts the fan for attachment to avertical support.

In some cases, it may be desirable to obtain a more positive engagementbetween the band and bed or the lugs 19 and faces 20. Such engagementmay be accomplished by theserration of the contacting faces. When such apractice is adopted, the tightening of the wing nut 26 draws theopposite serrated faces firmly into engagement with each other.

Sometimes, in order to meet certain commercial and manufacturingconditions, the fan motors may be provided with pressedsteel casings.When such practice is adopted, the assemblage of the casing isfacilitated by making it in two sections. each of which is shaped toenclose an end of the motor.

women It will be readily understood that, when such construction isadopted,'the inner edges of the casing sections may be so shaped that,

when they abut, they form the bed 17. Then, since the bed is enclosed bythe band 18, the joint in the casing is covered, giving the structure afinished appearance.

It is also pointed out that the date us-ally stamped on name plateswhich are attached to motor casings may be marked ontheband-18.

I would state, in conclusion, that, while the illustrated exampleconstitutes a practical embodiment of my invention, I do not limitmyself strictly to the exact details hereinillustrated, sincemodifications of the same may be considerably varied without departingfrom the spirit of the invention, as defined in the appended claims.

Having described my invention, what- I desire to claim as new and secureby Letters Patent is: I

1. A fan-motor mountin comprising, in combination, a band shape toencircle and grip the motor, a support ada ted to receive the band, andmeans for attac ing the band to the sup ort and to effect the grippingof the motor y the band, said attaching means being adjustable topermitthe setting of the grotor in difi'erent positions realtive to the ass.

2. In a fan-motor mounting, in combination, a band adapted to grip themotor, a

friction face formed on said motor to receive the band, a base to carrythe band, and means adapted to attach the band to the base, said meansbeing ada ted to effect the grippling of the motor by t e band.

3. n a fan-motor mounting, in combination, an open band adapted to gripthe motor,an annular bed formed on the motor to receive the band, a baseto support the band, and means for attaching the band to the base, saidmeans being adapted to contract the band to cause it to grip the motor.

4. In a fan-motor mounting, in combination, an open band adapted togripl the motor, an annular; bed formed on e motor to receive the band,a base to support the band, and means to attach the band to the base,said means being adapted to develop a spring pressure to urge the handagainst the bed.

5. In a fan-motor mounting, in combination, an open band adapted to gripthe motor, an annular bed formed on the motor to receive the band, abase to carry said band, lugs formed on the ends of the band to beseated on the base, and means operable to attach said lugs to the basein different positions.

6. In a fan-motor mounting, in combination, an open band adapted to gripthe motor,

formed on the ends of the band to be seated on the base, and meansoperable to attach said lugs to the base in different positions, saidbase being provided with friction faces to receive the lugs.

7. In a fan-motor mounting, in combination, an open band adapted to gripthe motor, an annular bed formed on the motor to receive the band, abase to carry said band, lugs formed on the ends of the band to beseated-on the base, means operable .to attach said lugs to the base indifferent positions, said base bein provided with friction faces toreceive the ugs, and shoulders formed on the base to limit the movementof the lugs.

8. In a fan-motor mounting, in combination, an open band ada ted'toencircle the motor, an annular friction face formed on the motor toreceive the band, a base rovided with a shank to carry the band, ugs

depending from the ends of the band to be seated on opposite sides ofthe shank, said shank being rovided wlthfrictlon faces to receive theugs, and means to draw the lugs into engagement with said faces to fixthe band in different positions relative to the'base and to effect thegripping of the motor by the band.

9. In a fan-motor mounting, in combination, an open band adapted toencircle the motor, an annular .frict onface formed on the motor toreceive the band, a base rovided with a shank to carry the band, lh 5depending from the ends of the .band to fie seated on opposite sides ofthe shank, said shank being rovided with friction faces to receive the ns, means to draw the lugs into engagement with said faces to fix theband in different positions relative to the base and to eflect thegripping of the motor by the band, and circumferential rows ofprojections formed on the motor adjacent said friction face to retainthe band in position.

In testimony whereof, I have hereunto subscribed my name this fourth dayof August, 1924.

ARTHUR B. REYNDERS.

